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| author | Richard Guenther <rguenther@suse.de> | 2010-08-24 13:25:25 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2010-08-24 13:25:25 +0000 |
| commit | d15adbeb3f73ab2765c7f700c576410445d144fd (patch) | |
| tree | ac7ce329d3a7ff7ad17267791793020655a605c9 /gcc/tree-ssa-address.c | |
| parent | 1991282b0e0ebc9dd3daf38242da9d0ea7638d86 (diff) | |
| download | gcc-d15adbeb3f73ab2765c7f700c576410445d144fd.zip gcc-d15adbeb3f73ab2765c7f700c576410445d144fd.tar.gz gcc-d15adbeb3f73ab2765c7f700c576410445d144fd.tar.bz2 | |
re PR middle-end/45379 (~10% slowdown on test_fpu at revision 163278)
2010-08-24 Richard Guenther <rguenther@suse.de>
PR middle-end/45379
* tree-ssa-address.c (create_mem_ref_raw): Drop to MEM_REF
if addr->index is NULL or zero.
* tree-ssa-alias.c (indirect_refs_may_alias_p): Handle
TARGET_MEM_REF more properly.
(indirect_ref_may_alias_decl_p): Likewise.
* emit-rtl.c (set_mem_attributes_minus_bitpos): Keep TARGET_MEM_REFs.
* alias.c (ao_ref_from_mem): Handle TARGET_MEM_REF more
properly.
From-SVN: r163519
Diffstat (limited to 'gcc/tree-ssa-address.c')
| -rw-r--r-- | gcc/tree-ssa-address.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/gcc/tree-ssa-address.c b/gcc/tree-ssa-address.c index 77dfa60..ffc5541 100644 --- a/gcc/tree-ssa-address.c +++ b/gcc/tree-ssa-address.c @@ -357,8 +357,7 @@ create_mem_ref_raw (tree type, tree alias_ptr_type, struct mem_address *addr) /* If possible use a plain MEM_REF instead of a TARGET_MEM_REF. */ if (alias_ptr_type - && !addr->index - && !addr->step + && (!addr->index || integer_zerop (addr->index)) && (!addr->base || POINTER_TYPE_P (TREE_TYPE (addr->base)))) { tree base; |